package com.wt.chat.service;

import com.wt.chat.entity.User;

/**
 * @description
 * @author: wangtao
 * @date:10:55 2019/6/4
 * @email:386427665@qq.com
 */
public interface UserService {


	/**
	 * 主键查找
	 * @param userId
	 * @return
	 */
	User findById(Integer userId);
}
